and incorporated areas - mississippi

1
PRELIMINARY SEP 30 2009 C O U N T Y R O A D 3 2 7 COUNTY ROAD 306 P 8 O L D H W Y 8 COUNTY ROGERS RD Little Horse Pen Creek Little Horse Pen Creek ZONE A ZONE A FLOOD HAZARD INFORMATION IS NOT SHOWN ON THIS MAP IN AREAS OUTSIDE OF CALHOUN COUNTY Calhoun County Unincorporated Areas 280288 R. 7 E. R. 8 E. T. 22 N. T. 23 N. 30 6 31 19 18 19 18 COUNTY ROAD 391 LIMIT OF STUDY 7 30 7 ROAD 328 R. 8 E. R. 7 E. ZONE A Yalobusha River CALHOUN YALOBUSHA COUNTY COUNTY CALHOUN GRENADA COUNTY CALHOUN COUNTY GRENADA COUNTY COUNTY 745000 FT 750000 FT 755000 FT 760000 FT 765000 FT 770000 FT 775000 FT 780000 FT 1550000 FT 1555000 FT 1560000 FT 1565000 FT 1570000 FT 1575000 FT 1580000 FT 1585000 FT 1590000 FT 2 58 000m E 2 59 000m E 2 60 000m E 2 61 000m E 2 62 000m E 2 63 000m E 2 64 000m E 2 65 000m E 2 66 000m E 2 67 000m E 2 68 000m E 37 38 000m N 37 39 000m N 37 40 000m N 37 41 000m N 37 42 000m N 37 43 000m N 37 44 000m N 37 45 000m N 37 46 000m N 37 47 000m N 37 48 000m N 37 49 000m N 37 50 000m N 37 51 000m N 89°37'30" 33°52'30" 89°30'00" 33°52'30" 89°37'30" 33°45'00" 89°30'00" 33°45'00" JOINS PANEL 0225 JOINS PANEL 0350 JOINS PANEL 0425 CALHOUN COUNTY, MISSISSIPPI AND INCORPORATED AREAS CALHOUN COUNTY 280288 0325 D PANEL 0325D FIRM FLOOD INSURANCE RATE MAP PANEL 325 OF 500 (SEE MAP INDEX FOR FIRM PANEL LAYOUT) CONTAINS: COMMUNITY NUMBER PANEL SUFFIX Notice to User: The Map Number shown below should be used when placing map orders; the Community Number shown above should be used on insurance applications for the subject community. MAP NUMBER 28013C0325D MAP REVISED Federal Emergency Management Agency LEGEND SPECIAL FLOOD HAZARD AREAS SUBJECT TO INUNDATION BY THE 1% ANNUAL CHANCE FLOOD The 1% annual chance flood (100-year flood), also known as the base flood, is the flood that has a 1% chance of being equaled or exceeded in any given year. The Special Flood Hazard Area is the area subject to flooding by the 1% annual chance flood. Areas of Special Flood Hazard include Zones A, AE, AH, AO, AR, A99, V, and VE. The Base Flood Elevation is the water-surface elevation of the 1% annual chance flood. ZONE A No Base Flood Elevations determined. ZONE AE Base Flood Elevations determined. ZONE AH Flood depths of 1 to 3 feet (usually areas of ponding); Base Flood Elevations determined. ZONE AO Flood depths of 1 to 3 feet (usually sheet flow on sloping terrain); average depths determined. For areas of alluvial fan flooding, velocities also determined. ZONE AR Special Flood Hazard Area formerly protected from the 1% annual chance flood by a flood control system that was subsequently decertified. Zone AR indicates that the former flood control system is being restored to provide protection from the 1% annual chance or greater flood. ZONE A99 Areas to be protected from 1% annual chance flood event by a Federal flood protection system under construction; no Base Flood Elevations determined. ZONE V Coastal flood zone with velocity hazard (wave action); no Base Flood Elevations determined. ZONE VE Coastal flood zone with velocity hazard (wave action); Base Flood Elevations determined. FLOODWAY AREAS IN ZONE AE The floodway is the channel of a stream plus any adjacent floodplain areas that must be kept free of encroachment so that the 1% annual chance flood can be carried without substantial increases in flood heights. OTHER FLOOD AREAS ZONE X Areas of 0.2% annual chance flood; areas of 1% annual chance flood with average depths of less than 1 foot or with drainage areas less than 1 square mile; and areas protected by levees from 1% annual chance flood. OTHER AREAS ZONE X Areas determined to be outside the 0.2% annual chance floodplain. ZONE D Areas in which flood hazards are undetermined, but possible. COASTAL BARRIER RESOURCES SYSTEM (CBRS) AREAS OTHERWISE PROTECTED AREAS (OPAs) CBRS areas and OPAs are normally located within or adjacent to Special Flood Hazard Areas. 1% annual chance floodplain boundary 0.2% annual chance floodplain boundary Floodway boundary Zone D boundary CBRS and OPA boundary Boundary dividing Special Flood Hazard Area Zones and boundary dividing Special Flood Hazard Areas of different Base Flood Elevations, flood depths, or flood velocities Limit of Moderate Wave Action Delineation 513 Base Flood Elevation line and value; elevation in feet* (EL 987) Base Flood Elevation value where uniform within zone; elevation in feet* * Referenced to the North American Vertical Datum of 1988 A A Cross section line 23 23 Transect line 97°07'30", 32°22'30" Geographic coordinates referenced to the North American Datum of 1983 (NAD 83), Western Hemisphere 42 75 000m E 1000-meter Universal Transverse Mercator grid ticks, zone 16 6000000 FT 5000-foot grid values: Mississippi State Plane coordinate system, East Zone (FIPSZONE = 2301), Transverse Mercator projection DX5510 Bench mark (see explanation in Notes to Users section of this FIRM panel) M1.5 River Mile MAP REPOSITORIES Refer to Map Repositories list on Map Index EFFECTIVE DATE OF COUNTYWIDE FLOOD INSURANCE RATE MAP January 3, 1990 EFFECTIVE DATE(S) OF REVISION(S) TO THIS PANEL For community map revision history prior to countywide mapping, refer to the Community Map History table located in the Flood Insurance Study report for this jurisdiction. To determine if flood insurance is available in this community, contact your insurance agent or call the National Flood Insurance Program at 1-800-638-6620. NOTES TO USERS This map is for use in administering the National Flood Insurance Program. It does not necessarily identify all areas subject to flooding, particularly from local drainage sources of small size. The community map repository should be consulted for possible updated or additional flood hazard information. To obtain more detailed information in areas where Base Flood Elevations (BFEs) and/or floodways have been determined, users are encouraged to consult the Flood Profiles and Floodway Data and/or Summary of Stillwater Elevations tables contained within the Flood Insurance Study (FIS) report that accompanies this FIRM. Users should be aware that BFEs shown on the FIRM represent rounded whole-foot elevations. These BFEs are intended for flood insurance rating purposes only and should not be used as the sole source of flood elevation information. Accordingly, flood elevation data presented in the FIS report should be utilized in conjunction with the FIRM for purposes of construction and/or floodplain management. Coastal Base Flood Elevations (BFEs) shown on this map apply only landward of 0.0' North American Vertical Datum of 1988 (NAVD 88). Users of this FIRM should be aware that coastal flood elevations are also provided in the Summary of Stillwater Elevations table in the Flood Insurance Study report for this jurisdiction. Elevations shown in the Summary of Stillwater Elevations table should be used for construction and/or floodplain management purposes when they are higher than the elevations shown on this FIRM. Boundaries of the floodways were computed at cross sections and interpolated between cross sections. The floodways were based on hydraulic considerations with regard to requirements of the National Flood Insurance Program. Floodway widths and other pertinent floodway data are provided in the Flood Insurance Study report for this jurisdiction. Certain areas not in Special Flood Hazard Areas may be protected by flood control structures. Refer to Section 2.4 "Flood Protection Measures" of the Flood Insurance Study report for information on flood control structures for this jurisdiction. The projection used in the preparation of this map was State Plane Mississippi East FIPS Zone 2301. The horizontal datum was NAD83, GRS1980 spheroid. Differences in datum, spheroid, projection or UTM zones used in the production of FIRMs for adjacent jurisdictions may result in slight positional differences in map features across jurisdiction boundaries. These differences do not affect the accuracy of this FIRM. Flood elevations on this map are referenced to the North American Vertical Datum of 1988. These flood elevations must be compared to structure and ground elevations referenced to the same vertical datum. For information regarding conversion between the National Geodetic Vertical Datum of 1929 and the North American Vertical Datum of 1988, visit the National Geodetic Survey website at http://www.ngs.noaa.gov/ or contact the National Geodetic Survey at the following address: NGS Information Services NOAA, N/NGS12 National Geodetic Survey SSMC-3, #9202 1315 East-West Highway Silver Spring, Maryland 20910-3282 (301) 713-3242 To obtain current elevation, description, and/or location information for bench marks shown on this map, please contact the Information Services Branch of the National Geodetic Survey at (301) 713-3242 or visit its website at http://www.ngs.noaa.gov/ . Base map information shown on this FIRM was provided in digital format by the State of Mississippi and the U.S. Census Bureau. This information was photogrammetrically compiled at a scale of 1:400 from aerial photography dated March 2006. This map reflects more detailed and up-to-date stream channel configurations than those shown on the previous FIRM for this jurisdiction. The floodplains and floodways that were transferred from the previous FIRM may have been adjusted to conform to these new stream channel configurations. As a result, the Flood Profiles and Floodway Data tables in the Flood Insurance Study report (which contains authoritative hydraulic data) may reflect stream channel distances that differ from what is shown on this map. Corporate limits shown on this map are based on the best data available at the time of publication. Because changes due to annexations or de-annexations may have occurred after this map was published, map users should contact appropriate community officials to verify current corporate limit locations. Please refer to the separately printed Map Index for an overview map of the county showing the layout of map panels; community map repository addresses; and a Listing of Communities table containing National Flood Insurance Program dates for each community as well as a listing of the panels on which each community is located. Contact the FEMA Map Service Center at 1-800-358-9616 for information on available products associated with this FIRM. Available products may include previously issued Letters of Map Change, a Flood Insurance Study report, and/or digital versions of this map. The FEMA Map Service Center may also be reached by Fax at 1-800-358-9620 and its website at http://msc.fema.gov/ . If you have questions about this map or questions concerning the National Flood Insurance Program in general, please call 1-877-FEMA MAP (1-877-336-2627) or visit the FEMA website at http://www.fema.gov/business/nfip/ . This map was produced through the Mississippi Flood Map Modernization Initiative, a cooperative partnership between the State of Mississippi and Department of Homeland Security - Federal Emergency Management Agency. 1,000 0 1,000 2,000 3,000 4,000 FEET 600 0 600 1,200 METERS MAP SCALE 1" = 2000' CALHOUN COUNTY AND INCORPORATED COMMUNITIES FIRM PANEL LOCATOR 0025 0050 0075* 0100* 0125* 0150 0200 0225 0250 0325 0350 0425 0450 0475 0500 0355 0360 0375 0255 0265 0260 0270 0290 0295 0300 0380 0385 0400 0165 0170 0175 331 8 341 9 32 330 9 9 32 8 341 9 Elevation Reference Marks * PANEL NOT PRINTED Date - to update corporate limits, to change Special Flood Hazard Areas, to update map format, and to update roads and road names.

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PRELIMINARY SEP 30 2009

COUN

TYRO

AD32

7

COUNTY

ROAD 306

P8

OLD HWY 8

COUNTY

ROGERSRD

Little Horse Pen Creek

Little Horse Pen Creek

ZONE A

ZONE A

FLOOD HAZARD INFORMATION IS NOT SHOWN ON THIS MAP IN AREAS OUTSIDE OF CALHOUN COUNTY

Calhoun CountyUnincorporated Areas

280288

R. 7

E.R.

8 E.

T. 22 N.T. 23 N.

30

6

31

19

18

19

18

COUNTY ROAD 391LIMIT OF STUDY

7

30

7

ROAD 328

R. 8

E.R.

7 E.

ZONE A

Yalobusha River

CALHOUNYALOBUSHA COUNTY COUNTY

CALHOUNGRENADA COUNTY

CALH

OUN

COUN

TYGR

ENAD

A COU

NTY

COUNTY

745000 FT 750000 FT 755000 FT 760000 FT 765000 FT 770000 FT 775000 FT 780000 FT

1550000 FT

1555000 FT

1560000 FT

1565000 FT

1570000 FT

1575000 FT

1580000 FT

1585000 FT

1590000 FT

258000mE 259000mE 260000mE 261000mE 262000mE 263000mE 264000mE 265000mE 266000mE 267000mE 268000mE

3738000mN

3739000mN

3740000mN

3741000mN

3742000mN

3743000mN

3744000mN

3745000mN

3746000mN

3747000mN

3748000mN

3749000mN

3750000mN

3751000mN

89°37'30"33°52'30"

89°30'00"33°52'30"

89°37'30"33°45'00"

89°30'00"33°45'00"

JOINS PANEL 0225

JOIN

S PA

NEL 0

350

JOINS PANEL 0425

CALHOUN COUNTY,MISSISSIPPIAND INCORPORATED AREAS

CALHOUN COUNTY 280288 0325 D

PANEL 0325D

FIRMFLOOD INSURANCE RATE MAP

PANEL 325 OF 500(SEE MAP INDEX FOR FIRM PANEL LAYOUT)CONTAINS:COMMUNITY NUMBER PANEL SUFFIX

Notice to User: The Map Number shown below should be usedwhen placing map orders; the Community Number shown aboveshould be used on insurance applications for the subjectcommunity.

MAP NUMBER28013C0325D

MAP REVISED

Federal Emergency Management Agency

LEGENDSPECIAL FLOOD HAZARD AREAS SUBJECT TO INUNDATION BY THE1% ANNUAL CHANCE FLOOD

The 1% annual chance flood (100-year flood), also known as the base flood, is the flood that has a1% chance of being equaled or exceeded in any given year. The Special Flood Hazard Area is thearea subject to flooding by the 1% annual chance flood. Areas of Special Flood Hazard includeZones A, AE, AH, AO, AR, A99, V, and VE. The Base Flood Elevation is the water-surface elevation ofthe 1% annual chance flood.

ZONE A No Base Flood Elevations determined.ZONE AE Base Flood Elevations determined.

ZONE AH Flood depths of 1 to 3 feet (usually areas of ponding); Base Flood Elevationsdetermined.

ZONE AO Flood depths of 1 to 3 feet (usually sheet flow on sloping terrain); average depthsdetermined. For areas of alluvial fan flooding, velocities also determined.

ZONE AR Special Flood Hazard Area formerly protected from the 1% annual chance flood bya flood control system that was subsequently decertified. Zone AR indicates thatthe former flood control system is being restored to provide protection from the1% annual chance or greater flood.

ZONE A99 Areas to be protected from 1% annual chance flood event by a Federal floodprotection system under construction; no Base Flood Elevations determined.

ZONE V Coastal flood zone with velocity hazard (wave action); no Base Flood Elevationsdetermined.

ZONE VE Coastal flood zone with velocity hazard (wave action); Base Flood Elevationsdetermined.

FLOODWAY AREAS IN ZONE AEThe floodway is the channel of a stream plus any adjacent floodplain areas that must be kept free ofencroachment so that the 1% annual chance flood can be carried without substantial increases inflood heights.

OTHER FLOOD AREASZONE X Areas of 0.2% annual chance flood; areas of 1% annual chance flood with average

depths of less than 1 foot or with drainage areas less than 1 square mile; andareas protected by levees from 1% annual chance flood.

OTHER AREASZONE X Areas determined to be outside the 0.2% annual chance floodplain.ZONE D Areas in which flood hazards are undetermined, but possible.

COASTAL BARRIER RESOURCES SYSTEM (CBRS) AREAS

OTHERWISE PROTECTED AREAS (OPAs)CBRS areas and OPAs are normally located within or adjacent to Special Flood Hazard Areas.

1% annual chance floodplain boundary0.2% annual chance floodplain boundaryFloodway boundaryZone D boundaryCBRS and OPA boundaryBoundary dividing Special Flood Hazard Area Zones andboundary dividing Special Flood Hazard Areas of different BaseFlood Elevations, flood depths, or flood velocitiesLimit of Moderate Wave Action Delineation

513 Base Flood Elevation line and value; elevation in feet*(EL 987) Base Flood Elevation value where uniform within zone; elevation

in feet** Referenced to the North American Vertical Datum of 1988A A Cross section line

23 23 Transect line

97°07'30", 32°22'30" Geographic coordinates referenced to the North AmericanDatum of 1983 (NAD 83), Western Hemisphere

4275000mE 1000-meter Universal Transverse Mercator grid ticks, zone 166000000 FT 5000-foot grid values: Mississippi State Plane coordinate system,

East Zone (FIPSZONE = 2301), Transverse Mercator projectionDX5510 Bench mark (see explanation in Notes to Users section of this

FIRM panel)M1.5 River Mile

MAP REPOSITORIESRefer to Map Repositories list on Map Index

EFFECTIVE DATE OF COUNTYWIDEFLOOD INSURANCE RATE MAP

January 3, 1990EFFECTIVE DATE(S) OF REVISION(S) TO THIS PANEL

For community map revision history prior to countywide mapping, refer to the Community MapHistory table located in the Flood Insurance Study report for this jurisdiction.

To determine if flood insurance is available in this community, contact your insurance agent or callthe National Flood Insurance Program at 1-800-638-6620.

NOTES TO USERSThis map is for use in administering the National Flood Insurance Program. It does notnecessarily identify all areas subject to flooding, particularly from local drainage sources ofsmall size. The community map repository should be consulted for possible updated oradditional flood hazard information.To obtain more detailed information in areas where Base Flood Elevations (BFEs) and/orfloodways have been determined, users are encouraged to consult the Flood Profiles andFloodway Data and/or Summary of Stillwater Elevations tables contained within the FloodInsurance Study (FIS) report that accompanies this FIRM. Users should be aware thatBFEs shown on the FIRM represent rounded whole-foot elevations. These BFEs areintended for flood insurance rating purposes only and should not be used as the solesource of flood elevation information. Accordingly, flood elevation data presented in the FISreport should be utilized in conjunction with the FIRM for purposes of construction and/orfloodplain management.Coastal Base Flood Elevations (BFEs) shown on this map apply only landward of 0.0'North American Vertical Datum of 1988 (NAVD 88). Users of this FIRM should be awarethat coastal flood elevations are also provided in the Summary of Stillwater Elevations tablein the Flood Insurance Study report for this jurisdiction. Elevations shown in the Summaryof Stillwater Elevations table should be used for construction and/or floodplain managementpurposes when they are higher than the elevations shown on this FIRM.Boundaries of the floodways were computed at cross sections and interpolated betweencross sections. The floodways were based on hydraulic considerations with regard torequirements of the National Flood Insurance Program. Floodway widths and otherpertinent floodway data are provided in the Flood Insurance Study report for thisjurisdiction.Certain areas not in Special Flood Hazard Areas may be protected by flood controlstructures. Refer to Section 2.4 "Flood Protection Measures" of the Flood InsuranceStudy report for information on flood control structures for this jurisdiction.The projection used in the preparation of this map was State Plane Mississippi East FIPSZone 2301. The horizontal datum was NAD83, GRS1980 spheroid. Differences indatum, spheroid, projection or UTM zones used in the production of FIRMs for adjacentjurisdictions may result in slight positional differences in map features across jurisdictionboundaries. These differences do not affect the accuracy of this FIRM.Flood elevations on this map are referenced to the North American Vertical Datum of 1988.These flood elevations must be compared to structure and ground elevations referenced tothe same vertical datum. For information regarding conversion between the NationalGeodetic Vertical Datum of 1929 and the North American Vertical Datum of 1988, visit theNational Geodetic Survey website at http://www.ngs.noaa.gov/ or contact the NationalGeodetic Survey at the following address:NGS Information ServicesNOAA, N/NGS12National Geodetic SurveySSMC-3, #92021315 East-West HighwaySilver Spring, Maryland 20910-3282(301) 713-3242To obtain current elevation, description, and/or location information for bench marksshown on this map, please contact the Information Services Branch of the NationalGeodetic Survey at (301) 713-3242 or visit its website at http://www.ngs.noaa.gov/.Base map information shown on this FIRM was provided in digital format by the State ofMississippi and the U.S. Census Bureau. This information was photogrammetricallycompiled at a scale of 1:400 from aerial photography dated March 2006.This map reflects more detailed and up-to-date stream channel configurations thanthose shown on the previous FIRM for this jurisdiction. The floodplains and floodways thatwere transferred from the previous FIRM may have been adjusted to conform to these newstream channel configurations. As a result, the Flood Profiles and Floodway Data tables inthe Flood Insurance Study report (which contains authoritative hydraulic data) may reflectstream channel distances that differ from what is shown on this map.Corporate limits shown on this map are based on the best data available at the time ofpublication. Because changes due to annexations or de-annexations may have occurredafter this map was published, map users should contact appropriate community officials toverify current corporate limit locations.Please refer to the separately printed Map Index for an overview map of the countyshowing the layout of map panels; community map repository addresses; and a Listing ofCommunities table containing National Flood Insurance Program dates for each communityas well as a listing of the panels on which each community is located.Contact the FEMA Map Service Center at 1-800-358-9616 for information on availableproducts associated with this FIRM. Available products may include previously issuedLetters of Map Change, a Flood Insurance Study report, and/or digital versions of this map.The FEMA Map Service Center may also be reached by Fax at 1-800-358-9620 and itswebsite at http://msc.fema.gov/.If you have questions about this map or questions concerning the National FloodInsurance Program in general, please call 1-877-FEMA MAP (1-877-336-2627) or visit theFEMA website at http://www.fema.gov/business/nfip/.

This map was produced through the Mississippi Flood Map Modernization Initiative, acooperative partnership between the State of Mississippi and Department of HomelandSecurity - Federal Emergency Management Agency.

1,000 0 1,000 2,000 3,000 4,000FEET

600 0 600 1,200METERS

MAP SCALE 1" = 2000'

CALHOUN COUNTY AND INCORPORATED COMMUNITIESFIRM PANEL LOCATOR

0025

0050

0075*

0100*

0125*

0150

0200

0225

0250

0325

0350

0425

0450

0475

0500

0355

0360

0375

0255

0265

0260

0270

0290

0295

0300

0380

0385

0400

0165

0170

0175

331

8

341

932

330

9

9

32

8

341

9

Elevation Reference Marks

* PANEL NOT PRINTED

Date - to update corporate limits, to change Special Flood Hazard Areas, to update map format, andto update roads and road names.